CN203035293U - Structural-improved supercharger oil return pipe - Google Patents
Structural-improved supercharger oil return pipe Download PDFInfo
- Publication number
- CN203035293U CN203035293U CN 201220728569 CN201220728569U CN203035293U CN 203035293 U CN203035293 U CN 203035293U CN 201220728569 CN201220728569 CN 201220728569 CN 201220728569 U CN201220728569 U CN 201220728569U CN 203035293 U CN203035293 U CN 203035293U
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- bellows
- joint
- return tube
- flange
- tube according
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Abstract
The utility model provides a structural-improved supercharger oil return pipe comprising a corrugated pipe. A joint is connected with one end of the corrugated pipe and a flange is connected with the other end of the corrugated pipe. The corrugated pipe comprises a bare pipe and a corrugated section, the corrugated section is arranged at a bending position of the corrugated pipe, and the wall thickness of the corrugated pipe ranges from 0.3mm to 0.5mm. The structural improved supercharger oil return pipe has both rigidity and flexibility, using temperature is wide, the structural-improved supercharger oil return pipe is convenient to assemble, technique is simple, production cost is low, reliability is good and service life is long.
Description
Technical field
The utility model belongs to technical field of internal combustion engines, is specifically related to a kind of pressurized machine return tube that improves structure.
Background technique
The pressurized machine return tube is the passage that pressurized machine lubricant oil refluxes, and is the vitals that guarantees pressurized machine realization effectively lubricating.The following several structures of the general employing of pressurized machine return tube at present:
Full bellows
CN01252311.9 discloses a kind of diesel engine pressurized machine return tube assembly, mainly constituted by metal bellows and flange, described metal bellows is an integral body of no transition tube butt joint, and the enlarging flange was anchor ring after described metal bellows one end inserted in the described flange intermediate hole.This structure is full bellows, and the poor rigidity of pipe shatters, shakes disconnected easily, causes the leakage of oil of pressurized machine return tube; The enlarging turnup structure is adopted in the sealing of adpting flange and pressurized machine, does not have rebound degree, easily in the sealing surface leakage of oil.
Adopt the Placement of hard tube+rubber pipe+hard tube
Adopt the Placement of hard tube+rubber pipe+hard tube, good rigidly, but assembling is poor, and complex procedures, and rubber aging, explosion easily can't be used in the high-temperature zone.
Adopt the Placement of hard tube+bellows
CN200920141191.8 discloses a kind of pressurized machine return tube, comprises flange (or flared tube and nut), oil return steel pipe, bellows and pipe clamp assembly.The described steel pipe of this structure and bellows are welded into one, have taken into account the advantage of steel pipe and bellows simultaneously, but the two material difference, the welding difficulty, and be prone to stress at welding region and concentrate, so also easily because vibrations are ruptured, sealing-off, become new leak point; This structural manufacturing process complexity in addition, the cost height.
The model utility content
At the deficiencies in the prior art, the purpose of this utility model provides a kind of pressurized machine return tube that improves structure, takes into account rigidity and flexibility simultaneously, and the serviceability temperature scope is wide, and is easy to assembly, and technology is simple, and is with low cost, good reliability, and long service life.
In order to realize the purpose of this utility model, the technological scheme that the utility model adopts is:
A kind of pressurized machine return tube that improves structure comprises bellows, and described bellows one end is connected with joint, and the other end is connected with flange; Described bellows comprises light pipe and bellows segment, and described bellows segment is located at the bending position of bellows; The wall thickness of described bellows is 0.3mm～0.5mm.
Preferably, described bellows is provided with discontinuous bellows segment more than 2 sections or 2 sections.
Preferably, the wall thickness of described bellows is 0.45mm.
Preferably, described bellows is integrated type, and described flange and joint are welded on the two ends of described bellows respectively.
Preferably, described flange is provided with the step hole that the external diameter with described bellows is complementary; More preferably, the thickness of described flange is 6mm～10mm, more preferably 8mm; Described step hole depth is 1mm～2mm.
Preferably, the sealing surface of described flange is machining face, planeness≤0.1mm.
Preferably, described joint is provided with backstop boss and sealed groove, and described backstop boss is located on the joint end near described bellows, and described sealed groove is located on the joint end away from described bellows.Described backstop boss is annular boss, is used for limiting the insertion depth of joint; Described sealed groove is the circular groove of circumferentially offering in the external cylindrical surface upper edge of joint.The number of described sealed groove is more than 1, more preferably is 2.
Preferably, described return tube also comprises O shape circle, and described O shape circle is contained on the described joint.Preferred, described O shape is enclosed in the sealed groove that is contained on the described joint, and the internal diameter of described O shape circle and the external diameter of described sealed groove are complementary.
Preferably, the material of described flange, joint and bellows is identical, is preferably alloy material, more preferably stainless steel SUS304.
Useful technique effect of the present utility model is as follows:
1, compares with full bellows, the utility model only is provided with bellows segment in middle crooked place, and by preferred bellows wall thickness, bellows stiff and flexibility is had both, existing enough flexibility satisfies the requirement that is easy to assemble, and has enough rigidity to avoid bellows to shatter or shake disconnected again; The adpting flange face is machining face in addition, and planeness and roughness are easy to guarantee that the fitted seal gasket seal is more reliable.
2, compare with the Placement of hard tube+rubber pipe+hard tube, in the utility model when assembling, only need after O shape circle dips in oil joint to be inserted in the spill port of cylinder body and get final product, and be easy to assembly, can save man-hour more than 80%; Can use for a long time in the high-temperature zone more than 200 ℃, using scope is wide; And aging, the explosion problem that do not have rubber pipe, longer service life.
3, compare with the Placement of hard tube+bellows, the utility model bellows is integrated type, does not have the potential safety hazard of bringing because of welding in the middle of pipeline, and reliability is higher, and technology is simple, and cost is low.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the local A enlarged view of Fig. 1,
Fig. 3 is the local B enlarged view of Fig. 1,
Sequence number explanation among the figure: flange 1, step hole 11, sealing surface 12, bellows 2, bellows segment 21, bellows segment 22, joint 3, backstop boss 31, sealed groove 32, O shape circle 4.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
Following institute drawings attached is instructed substantially for only being convenient to explain the utility model, in the accompanying drawing will to the number of the assembly that constitutes preferred embodiment, position, relation, and the extension of size will have illustratedly, reading and understanding the relevant variation in instruction of the present utility model back and implement to belong to industry technical ability.In addition, after reading and understanding instruction of the present utility model, cooperate specific strength, weight, intensity, the accurate dimension that reaches similar requirement and the change of dimension scale also to belong to industry technical ability.
Referring to Fig. 1, a kind of pressurized machine return tube that improves structure comprises bellows 2, and described bellows one end is connected with joint 3, and the other end is connected with flange 1; Described bellows comprises light pipe and bellows segment 21,22, and described bellows segment 21,22 is located at the bending position of bellows 2; The wall thickness of described bellows is 0.3mm～0.5mm.
Referring to Fig. 1, described bellows 2 is integrated type, is respectively equipped with bellows segment 21 and bellows segment 22 in bending position, middle two places, and two bellows segment 21, the 22nd, and discontinuous, remaining part is light pipe.The wall thickness range of described bellows 2 is 0.3mm～0.5mm, is preferably 0.45mm.Can guarantee that like this bellows 2 has appropriate rigidity and flexibility, neither can shatter or shake disconnected because of poor rigidity easily, also can not be difficult to assembling because of the flexibility difference and adjust.In addition, because this bellows is integrated type, the potential safety hazard that in the middle of pipeline, does not exist welding to bring, reliability is higher, and technology is simple, and cost is low.Prove that by assembling and verification experimental verification this wall thickness is suitably flexible, can satisfy the matching requirements of automobile, can satisfy the test requirements document of engine reliability simultaneously again.
Referring to Fig. 1 and Fig. 2, described flange 1 can be selected the flange of appropriate size on the market as required for use.In a preferred embodiment of the present utility model, described flange 1 is provided with the step hole 11 that the external diameter with described bellows 2 is complementary; The sealing surface 12 of described adpting flange 1 is machining face, and planeness≤0.1mm can guarantee the planeness of the sealing surface of adpting flange 1 like this, and the fitted seal gasket seal is more reliable.
In another preferred embodiment, the thickness of described flange is 6mm～10mm, more preferably 8mm; Described step hole depth is 1mm～2mm.
Referring to Fig. 1 and Fig. 3, described joint 3 is provided with backstop boss 31 and sealed groove 32, and described backstop boss 31 is located on the joint 3 end near described bellows segment 22, and described sealed groove 32 is located on the joint 3 end away from described bellows segment 22.Described backstop boss 31 is annular boss, is used for limiting the insertion depth of joint; Described sealed groove 32 is circular grooves of circumferentially offering in the external cylindrical surface upper edge of joint 3.The number of described sealed groove 32 is more than 1, more preferably is 2.
In another preferred embodiment, described return tube also comprises O shape circle 4, and in described O shape circle 4 sealed grooves 32 that are contained on the described joint 3, the head of described joint 3 is provided with the reducing that makes things convenient for O shape circle to install.Only need during assembling after O shape circle 4 dips in oil, joint to be inserted in the spill port of cylinder body and get final product, easy to assembly, can save man-hour more than 80%, and sealing is reliably.
Described adpting flange 1 and joint 3 are connected as a single entity by copper brazing with bellows 2 respectively, and three's material is identical, all is stainless steel SUS304.
More than disclosed only be a specific embodiment of the present utility model, but the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (10)
1. a pressurized machine return tube that improves structure is characterized in that, comprises bellows, and described bellows one end is connected with joint, and the other end is connected with flange; Described bellows comprises light pipe and bellows segment, and described bellows segment is located at the crooked place of bellows; The wall thickness of described bellows is 0.3mm～0.5mm.
2. return tube according to claim 1 is characterized in that, described bellows is provided with discontinuous bellows segment more than 2 sections or 2 sections.
3. return tube according to claim 1 is characterized in that, the wall thickness of described bellows is 0.45mm.
4. return tube according to claim 1 is characterized in that, described bellows is integrated type, and described flange and joint are welded on the two ends of described bellows respectively.
5. return tube according to claim 1 is characterized in that, described flange is provided with the step hole that the external diameter with described bellows is complementary.
6. return tube according to claim 1 is characterized in that, the sealing surface of described flange is machining face, planeness≤0.1mm.
7. return tube according to claim 1 is characterized in that, described joint is provided with backstop boss and sealed groove, and described backstop boss is located on the joint end near described bellows, and described sealed groove is located on the joint end away from described bellows.
8. return tube according to claim 1 is characterized in that, described return tube also comprises O shape circle, and described O shape circle is contained on the described joint.
9. return tube according to claim 8 is characterized in that, described O shape is enclosed in the sealed groove that is contained on the described joint.
10. according to any described return tube of claim 1 ~ 9, it is characterized in that the material of described flange, joint and bellows is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728569 CN203035293U (en) | 2012-12-26 | 2012-12-26 | Structural-improved supercharger oil return pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220728569 CN203035293U (en) | 2012-12-26 | 2012-12-26 | Structural-improved supercharger oil return pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035293U true CN203035293U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220728569 Withdrawn - After Issue CN203035293U (en) | 2012-12-26 | 2012-12-26 | Structural-improved supercharger oil return pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016096A (en) * | 2012-12-26 | 2013-04-03 | 安徽江淮汽车股份有限公司 | Supercharger oil return tube with improved structure |
-
2012
- 2012-12-26 CN CN 201220728569 patent/CN203035293U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016096A (en) * | 2012-12-26 | 2013-04-03 | 安徽江淮汽车股份有限公司 | Supercharger oil return tube with improved structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20160720 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |